Friction device for shuttles.



I 1 snow. FRICTION DEVICE FOR SHUTTLES.

APPLICATION FILED JAN. 10 1913.

Patented June 9, 19%

WITNESSES.-

IN VEN TOR. WW

' A TTORNE Y.

UNITED STATES PATENT OFFICE.

ISAAC SNOW, 0F LAWRENCE, MASSACHUSETTS ASSIGNOR, BY MESNE ASSIGNMENTS,OF ONE-HALF TO HARRY CLOUGH, OF LAWRENCE, MASSACHUSETTS.

FRICTION DEVICE FOR SHUTTLES.

Application filed January 10, 1913.

Specification of Letters Patent.

To all whom it may concern: I

Be it known that I, ISAAC SNow, a c1t1- zen of the United States,residing at Law: rence, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements inFriction Devices for Shuttles, of which the following is aspecification.

My invention relates to devlces 1n shuttles for the purpose ofpreventing thefilling from running out too freely and from floating. Itis used so that the filling may as nearly as possible be kept straightat all times and without kinks. Its purpose is to produce a slightfriction or drag on the filling as it is running out through the shuttleeye.

The advantages of my deviceare its durability and the uniform drag whichit exerts on the filling. It also permits lumps and uneven places topass through without breaking.

My device consists substantlally of a disk of rawhide or any othersuitable material placed at an angle with the axis of the shut tle andheld by suitable means so that the filling must pass under it or alongits edge in its course to the shuttle eye, whereby the disk will crawlor move in a rotative mannor in a direction transverse to the move-.ment of the filling thus presenting a new surface continually to thefilling. The disk which I prefer to use should be suitably confined in aosition transverse to or at an angle with t e axis of the shuttle andshould rest upon a bottom plate in such a manner that the filling mustpass between the disk and the plate. With such a disk, there isnoregular rotative action, but the disk exei ts a drag on the fillingwhich in turn causes the disk to creep, thus presenting a new point ofcontact continually. The edges of this disk should preferably be roundedand the disk may be made of rawhide, fiber, metal or even, glass. tactof the disk With the fi stantly changing, the filling cannot cut creasesor grooves in the disk.

In the drawings, Figure 1 is a plan view of one form of my device in ashuttle. Fig.

. 2 is a sectional elevation from'the right on the lineX Y of Fig. 1.,

Fig. 3 is an elevation as from the right side of Fig. 2 of the devicebefore being driven into theshut- As the point of conling is con-' tle.

tle. Fig. 4 is a similar view after its legs are driven into place inthe shuttle. Fig. 5 is a side elevation of a modification of the holderwhich is screwed into place instead of being held in place by legs. Fig.6 is a plan view of the well known suction eye shuttle with the form ofmy device shown in Fig. 5 in lace. Fig. 7 is a side elevation of a leaed or weighted form of disk which I may use. Fig. 8 is a plan view of mydevice applied to a certain form of threading device in a shuttle. Fig.9 is an elevation as from the left of the threader shown in Fig. 8separate from the shuttle. Fig. 10 is a plan view of a well known formof self threading shuttle with my device attached.

Fig-11 is a sectional perspective of the same without the disk and Fig.12 is a sectional perspective with the disk in place.

Inthe type of device shown in Figs. 1, 2, 3 and 4, A is the wooden partof the shuttle- B is the metal point thereof. C is the bobbin and D isthe filling. H is a disk of'rawhide, fiber or any other suitable material and is held in place by a holder such as L. In this form, theholder is stamped out of and bent from a single sheet of metal. Itcomprises a top plate 51 from which extends a bottom plate 50 in theform of a long 'curvedtongue which terminates at 54. Legs 52 and 53 arebent downward from top late 51 on each side of the bottom plate 5001-111- ing the sides of the device so that the whole holder forms aloose inclosure for disk H.

shuttle is recessed to. fit holder L.

The legs 52 and 53 'serve the purpose of holding the device in place andare driven,

into holes 56 and 57 in the wood of the shut- These holes 56 and 57preferably extend away from each other as they enter, whereby when thelegs 52 and 53 are driven in, the holder L is firmly held in place. DiskH is thus held loosely between legs 52 and 53, top plate 51 and bottomvplate '50. .The holder L may be so placed that disk H will form an acuteangle or a right angle with the ,filling'D as it passes from ion andmoved so as to make it crawl more or less, it will never be out ofcontact with the filling long enough to permit the filling to float. Itwill thus cause a substantially .fixed drag on the filling.

As shown in Fig. 7, I may use a disk such as M loadedwith lead orotherheavy material as in order to increase the friction.

In Fig. 5 is showna modification of my device which has a back plate 81,a bottom plate 80 and instead of legs, the side supports 82 and 83 allsuitably bent from one sheet of metal. A pin 85 passes through and isfixed in sides 82 and 83 and. passes loosely'through a large hole 86 inrawhide disk 87 thus holding it loosely in place. A screw 88 whichpasses through back plate 81 into the wood. P of the shuttle holds thedevice in place. l

In Figs. 8 and 9, I show the device in connection with ashuttle-threader or self threading shuttle of a design upon which I haveapplied for Letters Patent as threading device for shuttles, January 10,1913, Serial No. 741,294. The threader F is preferably formed of asingle sheet of metal and is inserted into a threader recess 21adjoining the bobbin recess 20 in the wood N of the shuttle so shaped asto receive it. 22 is the groove in the wood through which the fillingpasses into the shuttle eye :23. The threader F at the bottom 30 is ofsemicylindrical form while the side walls 31 and 32 continue straightupward for a certain distance. An ear 33 is bent on one side and anotherear 34 on the other side to rest in recesses 60 and 61 cut into the woodN on each side of the threader recess 21. Screws and 63 pass throughsuitable holes in each ear 33 and 34 into the wood N of theshuttle andhold threaider F in place. The top edge 35 of side '31 is so formed asto ust pass inside the depending tip 37 of a top guide plate 36 as shownin Fig. 9. The edge of top guide plate 36 nearest bobbin C has a longslope as shown in Fig. 8 while the far edge slopes slightly backward inline with'a vertical slot 24 in side 32. The slot 24 in the side 32which when the parts are in place adjoins slot 25 in the wood of theshuttle connects with an eye in side 32 not shown which adjoins theshuttle eye 23 whenthe parts are in place. It will be seen that thisdevice is itself-threading shuttle as by bringing filling D forward, itslips under nose 37 thence by bringing it backward it slips to the rightalong the front of plate 36'through slots 24 and 2.5 and lands in theeye of the threader which coincides with the eye 23 of the shuttle.Through the side wall 32 of threader F, I insert retaining side plates40 and 41 for disk H which extend part way across threader F and arecutaway at the bottom as shown at 42 in Fig. 9 so thatthey form groovedbearings for the filling D. The top guide plate 36 extends over the topof plates 40 and 41 sufliciently to hold therein the disk of rawhide Hwhich extends across the shuttle with its axis coinciding with thelongitudinal axis thereof. Disk H is loosely held between bottom 30,sides 31 and 32, side plates 40 and 41 and top. guide plate 36.

In Figs. 10, 11, 12, I show the device attached to a well known form ofself threading shuttle. The wood of the shuttle is shown at T and themetallic threader at M. In a recess 90 behind the threader M, I insert aholder which comprises a top plate 91, a bottom plate-92, a side plate93 and a pin 94 which is driven into threader M passing loosely througha large hole in the disk 97 as shown.

In Fig. 6, the holder shown in Fig. 5 is shown in place in the wellknown suction shuttle. P represents the wood of the shuttle and R theshuttle eye while the holder is screwed in place to the side wall 89 asshown in Fig. 5.

The essence of my invention is the arrangement of a holder or inclosurethrough which the filling must pass into the shuttle eye with a confinedmobile curved body such as a cylinder or disk made of suitable materialwith its axis substantially parallel with the course of the filling orthe axis of the shuttle and so confined thatit has some freedom ofaction but will continually return by theforce of gravity to a positionwherein it rests upon the filling and will continu ally orintermittently keep it incontact with the bottom of the holder.

may use a disk bored with a rela'tivel large hole and kept in place bymeans 0 a pin which passes through suchv hole.

What I claim as my invention and-desire to cover by Letters Patent, is:

1. In a tension device for shuttles, a disk located with its axissubstantially parallel with the course of the filling and so confined asto be movable vertically but not Instead of being confined in aninclosure or. holder, I

transversely of the shuttle and normally resting on the bottom plate andconfined in movement by said inclosure.

3. In a tension device for shuttles, the combination of a shuttle havinga suitable recess, with a holder bent from one piece of sheet metal andcomprising a to plate, a bottom plate so curved as to fit t e bottom ofthe recess and legs which form the sides and are bent from'the top platesaid legs being driven into suitable holes in the shuttle, together witha disk loosely inclosed between the top plate the bottom plate and thelegs as describe y 4. In a tension device for shuttles, the combinationof a shuttle having a suitable recess, with a holder bent from one pieceof sheet metal and comprising a top plate, a bottom plate so curved asto fit the bottom of the recess and legs which form the sides and arebent from the'to plate said legs being driven into suitable holes in theshuttle, together with a loaded disk loosely inclosed between the topplate, the bottom plate and the legs as described.

5. In a tension device for shuttles, the combination of a shuttle havinga suitable recess, with a holder bent from one piece of sheet metal. andcomprising a top plate, a bottom plate so curved as to fit the bottom ofthe recess and having a thin portion in proximity to the top plate, andlegs which form the sidesand are bent from the top plate said legs beingdriven into suitable diverging holes in the shuttle, together with andthe bottom plate and the legs as described.

6. In a tension device for shuttles, a holder formed of a single pieceof Sheet metal comprising a top plate, a curved bottom plate and legsbent down on each side of the bottom plate, together with a disk looselyinclosed between the top plate, the bottom plate and the legs,

7. In a tension deviw for shuttles, a bot tom plate, combined with adisk located with its axis substantially parallel with the axis of theshuttle and Wl'llCh is confined in movement and is so placed that thefilling must ass between it and the bottom plate, said disk beingcapable of a limited vertical movement and having its edge normallyresting on the filling.

8. In a tension device for shuttles, an inclosure comprising a bottomplate and sides transverse to the axis of the shuttle, combined with adisk located in such inclosure transversely of the shuttle and normallyresting on the bottom plate and confined in its movement by saidinclosure.

In .testimony whereof I hereto afiix my signature in presence of twowitnesses.

ISAAC SNOW.

Witnesses:

GARDNER A. PEARSON, Human F. Lon

